KR20140142140A - Sensing device for sensing position of sun, and apparatus and method for collecting sun-light using it - Google Patents
Sensing device for sensing position of sun, and apparatus and method for collecting sun-light using it Download PDFInfo
- Publication number
- KR20140142140A KR20140142140A KR20140056238A KR20140056238A KR20140142140A KR 20140142140 A KR20140142140 A KR 20140142140A KR 20140056238 A KR20140056238 A KR 20140056238A KR 20140056238 A KR20140056238 A KR 20140056238A KR 20140142140 A KR20140142140 A KR 20140142140A
- Authority
- KR
- South Korea
- Prior art keywords
- image
- sun
- convex lens
- unit
- center point
- Prior art date
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Landscapes
- Photovoltaic Devices (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Description
The present invention relates to a solar position sensor, a solar light concentrator using the same, and a solar light concentrator. More particularly, the present invention relates to a sun light shield which is formed in a hemispherical shape on a body portion and a body portion, An image acquiring unit which is located on a lower surface of the sunlight shielding unit and in which an image is formed by a convex lens and a control unit which analyzes the image formed on the image acquiring unit and determines the position of the sun, , The control unit analyzes the image that has passed through the convex lens acquired by the image acquiring unit, and rotates the solar photodetector and the solar concentrator according to the analysis result, thereby enhancing the light condensing efficiency of the sunlight, Detector, a solar concentrator using the same, and a solar concentrating method.
In response to exhaustion of fossil fuels and environmental problems caused by fossil fuels, interest in renewable energy to replace existing fossil fuels is increasing. Among new and renewable energy, photovoltaic power generation is a technology to produce electricity by converting the light energy of the sun. It uses solar cells that generate electricity by photoelectric effect when it receives sunlight. Photovoltaic power generation generally consists of a solar cell module, a battery, and a power converter.
Photovoltaic power generation is provided with an unlimited supply of energy to the sun, and it can be developed as needed in the place where it is needed. In addition, there is an advantage that maintenance is easy and remote control is possible because it can be unmanned. Solar power generation is one of the long-term favorable forms of development because it can be used for more than 20 years, although the initial investment cost is high.
However, solar power generation is heavily influenced by weather and power generation depends on regional solar radiation. In order to improve the light collecting efficiency of the photovoltaic power generation, a technology for tracking the position of the sun has been developed. In addition, the registered patent No. 10-0970952 receives GPS information from a plurality of GPS satellites through a GPS antenna, And the position information of the sun including the altitude and the azimuth of the sun is extracted based on the generated position information and the time information to rotate the solar module. However, when using the information received from GPS satellites, there may be an error in the GPS information, and if there is an error in the GPS information, it is not easy to determine whether the solar module is pointing to the correct sun position. In addition, there is a disadvantage in that the configuration is complicated because communication must be performed using a separate GPS receiving device.
Therefore, it is required to develop a sun position detector and a solar light concentrator using the same, which can accurately grasp the position and direction of the sun without communicating with an external device, and can directly detect the position error of the solar concentrator module.
It is an object of the present invention to provide a solar position sensor having a high light-collecting efficiency by rotating the direction of the solar light collecting unit according to the altitude of the sun, a solar light collecting apparatus using the same, and a solar light collecting method.
It is an object of the present invention to provide a solar position sensor with little error in sun position detection while manufacturing a solar position sensor at low cost, a solar light concentrator using the same, and a solar concentrator.
In order to accomplish the above object, a sun position sensor according to an embodiment of the present invention includes a body part, a solar light shielding part, an image acquisition part, a driving part, and a control part. The image capturing unit has a sensor surface disposed on the hemispherical inner circumferential surface of the solar light shielding portion toward the surface direction of the convex lens, and the sunlight shielding portion is formed on the hemispherical inner circumferential surface of the sunlight shielding portion, And the control unit controls the convex lens to follow the ecliptic of the sun according to the season and the time frame so as to position the convex lens at the approximate position of the sun, The control unit controls the driving unit so that the center point of the focus image is converged to the center point of the image obtained by the image acquisition unit, Control is performed.
According to an aspect of the present invention, there is provided a method for detecting a position of a sun, the method comprising: an approximate positioning step, a focus image forming step, a height adjusting step, a binary focus image forming step, And following the center point. Wherein the step of arranging the approximate position corresponds to the step of positioning the convex lens in accordance with the ecliptic angle of the sun and the time zone of the sun and the focus image forming step is a step of irradiating sunlight through the convex lens to form an original image and a focus image Wherein the step of adjusting the height corresponds to the step of adjusting the height between the convex lens and the sensor so that the size of the focus image is equal to or larger than a preset reference size, Wherein the step of determining a center point corresponds to a step of determining a center point of a binary focus image by applying a Hough transform to a binary focus image, And corresponds to a step in which the center point of the binary focus image follows the center point of the original image.
In order to accomplish the above object, a solar position sensor according to an embodiment of the present invention includes a body part, a solar light shielding part, an image acquisition part, and a control part. The sunlight shielding part is formed in a hemispherical shape on the body part, and has a convex lens on the upper part. The image acquiring unit is located on the lower surface of the sunlight-shielding unit, and the image is formed by the convex lens. The control unit analyzes the image formed on the image acquisition unit to determine the position of the sun.
The sun position sensor according to another embodiment of the present invention may further include a driving unit for changing the direction of the body according to the position of the sun determined by the control unit.
In the sun position sensor according to another embodiment of the present invention, the image acquiring unit may be formed of an illuminance sensor array.
The image acquisition unit in the sun position sensor according to another embodiment of the present invention may be formed as an electronic screen.
In the sun position sensor according to another embodiment of the present invention, a cross-shaped arm portion may be formed at the center of the convex lens.
In the sun position sensor according to another embodiment of the present invention, the driving unit may rotate the body portion until the image determined by the control unit becomes circular.
A solar light condensing apparatus according to an embodiment of the present invention includes a sun position sensor, a condensing unit, and a drive unit. The condensing unit condenses sunlight, and the driving unit controls the direction of the condensing unit according to the direction of the sun sensed by the sun position sensor.
In the solar light condensing apparatus according to another embodiment of the present invention, the solar position sensor includes a body portion, a solar light shielding portion formed in a hemispherical shape on the body portion and having a convex lens at an upper portion thereof, A control unit for determining the position of the sun by analyzing an image formed on the image acquiring unit and a driving unit for changing the direction of the body depending on the position of the sun determined by the control unit .
In the solar light condensing device according to another embodiment of the present invention, the drive unit may rotate the condensing unit so as to be parallel to the body portion of the sun position sensor.
The solar light condensing method according to an embodiment of the present invention includes the steps of receiving sunlight through a convex lens provided in a sun position sensor, acquiring an image through a convex lens, A step of rotating the direction of the solar photodetector according to a result of analysis by the control unit, a step of aligning the direction of the solar photodetector with the direction of the solar photodetector, And rotating the solar light condensing device as far as possible.
In the solar light condensing method according to another embodiment of the present invention, a coordinate system with the center as the origin is set in the image acquisition unit, and in the step of analyzing the image passing through the convex lens by the control unit provided in the solar photodetector, When the passed image is circular and the position of the image is less than a predetermined distance from the origin, the control unit can judge that the sun and the solar photodetector are in a straight line.
In the solar light condensing method according to another embodiment of the present invention, a coordinate system with the center as the origin is set in the image acquisition unit, and in the step of analyzing the image passing through the convex lens by the control unit provided in the solar photodetector, When the passing phase is not circular and the phase position is more than a predetermined distance from the origin, the control unit can judge that the sun and the solar photodetector are not in a straight line, and can control to rotate the direction of the solar photodetector.
In the solar light condensing method according to another embodiment of the present invention, the control unit analyzes the image passing through the convex lens while the solar photodetector rotates so that the image passing through the convex lens becomes circular and the position of the image is not more than a predetermined distance The direction of the solar photodetector can be rotated.
In the solar light condensing method according to another embodiment of the present invention, the solar position sensor may be formed integrally with the solar light condensing device, and the solar position sensor and the solar light condensing device may be simultaneously rotated according to the analysis result of the controller.
The sun position sensor of the present invention, the sun light concentrating device and sun light concentrating method using the same can rotate the light collecting plate according to the altitude of the sun to increase the light collecting efficiency.
The sun position sensor of the present invention, the sun light concentrating device and sun light concentrating method using the same can grasp the changing position of the sun directly so that the solar concentrator can direct the sun, and there is little error.
1 is a block diagram schematically illustrating a sun position sensor according to an embodiment of the present invention.
2 is a view showing a sun position sensor according to an embodiment of the present invention.
3 (a) and 3 (b) are views showing an image acquisition unit in a sun position sensor according to an embodiment of the present invention.
4 (a) and 4 (b) are views showing an image acquisition unit in a sun position sensor according to an embodiment of the present invention.
5 is a view showing that a convex lens image is formed on the image acquisition unit in the sun position sensor according to the embodiment of the present invention.
6 is a view showing that a convex lens image is formed on the image acquisition unit in the sun position sensor according to the embodiment of the present invention.
7 is a view showing that a cross-shaped arm portion is formed in a convex lens in a sun position sensor according to an embodiment of the present invention.
8A and 8B are views showing that a phase of a convex lens formed with a crisscross arm portion is formed in the image acquisition unit in the sun position sensor according to the embodiment of the present invention.
9 is a flowchart illustrating an operation of the driving unit to rotate the sun position sensor in the sun position sensor according to the embodiment of the present invention.
10 is a view illustrating a solar light concentrating apparatus having a sun position sensor according to an embodiment of the present invention.
11 is a view illustrating a solar light concentrating apparatus having a sun position sensor according to an embodiment of the present invention.
12 (a) and 12 (b) are views showing the rotation of the sun position sensor when the phase of the convex lens is distorted in the sun position sensor according to the embodiment of the present invention.
13 is a flowchart illustrating an operation of the driving unit to rotate the sun position sensor in the sun position sensor according to the embodiment of the present invention.
FIG. 14 and FIG. 15 are UI (User Interface) diagrams of the control-monitoring program prepared by the present applicant for controlling and testing the sun position sensor of the present invention.
16 is a flowchart illustrating a method of detecting a sun position sensor by a driving unit in a sun position sensor according to another embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.
FIG. 1 is a block diagram schematically showing a sun position sensor according to an embodiment of the present invention, and FIG. 2 is a view illustrating a sun position sensor according to an embodiment of the present invention.
1, a
The
The
The
The
The
Meanwhile, the
The
3 (a) and 3 (b) are views showing an image acquisition unit in a sun position sensor according to an embodiment of the present invention. FIGS. 4 (a) and 4 (b) Fig.
The
Meanwhile, as shown in FIG. 4, the
FIG. 5 is a view showing that a convex lens image is formed in an image acquisition unit in a sun position sensor according to an embodiment of the present invention, FIG. 6 is a view showing an example of a sun position sensor according to an embodiment of the present invention, Fig.
Next, tracking of the position of the sun from the image of the processed
As shown in FIG. 5, when the
A reference value for determining whether the image of the
6, when the
When the image of the
In the present embodiment, an example in which the
FIG. 7 is a view showing a cross-shaped arm portion formed on a convex lens in the sun position sensor according to the embodiment of the present invention. FIGS. 8 (a) and 8 (b) Is an image of a convex lens formed with a cross-shaped arm portion in the image acquisition section.
In another embodiment of the present invention, a cross-shaped arm portion may be formed at the center of the
8A shows an image of the
FIG. 9 is a flowchart illustrating an operation in which a driving unit rotates a sun position sensor in a sun position sensor according to an exemplary embodiment of the present invention. FIG. 10 is a flowchart illustrating the operation of the sun light position sensor in accordance with an embodiment of the present invention. 11 is a view illustrating a solar light concentrating apparatus having a sun position sensor according to an embodiment of the present invention.
The operation of rotating the
The
Next, the
In operation S1400, the
If the shape of the analyzed image is circular and is formed within a predetermined distance from the origin, the sun position tracking process is terminated (S1600). When the
Meanwhile, in the embodiment of the present invention, as shown in FIG. 10, the solar light condensing apparatus includes a
12 (a) and 12 (b) are views showing the direction of the sun position sensor when the phase of the convex lens is distorted in the sun position sensor according to the embodiment of the present invention, and Fig. 13 In which the driving unit rotates the sun position sensor in the sun position sensor according to the first embodiment of the present invention.
The operation of the
[Example]
The
As shown in FIG. 13, in order to track the position of the sun, sunlight is irradiated through the
The
The
The
If the image of the
If the position of the image is not located in the first quadrant on the
If the position of the image is not located in the second quadrant on the
On the other hand, if the image position is not located in the third quadrant on the
The
If the analyzed image has a circular shape and is formed within a predetermined distance from the origin, the process of tracking the sun position is terminated (S2600). When the
The sun position sensor according to the present invention can increase the light condensing efficiency by rotating the direction of the sun light condensing unit according to the altitude of the sun and there is little error in detecting the sun position.
14 and 15 show a UI (User Interface) of a control-monitoring program prepared by the present applicant for the control and testing of the sun position sensor of the present invention.
14A and 14B, first, FIG. 14A shows the entire image scratched by the
Referring to FIG. 14 (a), it can be seen that the focus image of the sunlight is focused on the left upper side with reference to the drawing. The fact that the focus image P0 is formed on the upper left side with reference to FIG. 14 (a) , It can be seen that the sun is located at the lower right of the drawing when viewed from the drawing. Since the sun is not disposed perpendicular to the
FIG. 15 shows a reference diagram for a tracking process for a transformed image and a transformed image for the focus image and the binary focus image shown in FIG. 14 through the Hough transform.
Referring to Fig. 15, when Hough transform is performed on each of Figs. 14A, 14B and 14C, the transformed image corresponding to Figs. 15A, 15B, . That is, Fig. 14A is transformed into Fig. 15A, Fig. 14B is transformed into Fig. 15B, and Fig. 14C is transformed into Fig. .
The Hough transformed focus image is transformed into a circle formed by the
15B shows a case where the Hough transform is applied to the binary focus image shown in FIG. 15A, and the Hough transformed image is obtained by following the center point P5 of the entire image shown in FIG. 15C Can be seen. Referring to FIG. 15C, it can be seen that there is a deviation between the center point P5 of the entire image after Hough transform and the center point P3 of the focus image. If the deviation satisfies the error range It can be considered that the tracking is successful. The error range can be defined as when the center point of the focus image (Hough transformed focus image) coincides with 95% or more of the entire image (the Huff transformed whole image). The error range may be set larger or smaller And is not limited to a specific numerical value.
When the tracking through the focused image is completed as shown in FIG. 15 (c), the sun position sensor according to the embodiment terminates the tracking and enters the standby state. After a predetermined time (for example, several minutes to several tens of minutes)
1) The
2) acquiring the entire image and the focus image through the
3) Converting the whole image and the focus image into a binary image expressed in black and white by performing a canny dpt paper conversion,
4) Converts the skewed focus image to its original shape by performing Hough transform on the Canny edge converted image,
5) Repeat the process of center-tracking the binary full image and the binary focused image so that the center points of the Hough transformed images are maximally matched.
16 is a flowchart illustrating a method of detecting a sun position sensor by a driving unit in a sun position sensor according to another embodiment of the present invention. The description with reference to Fig. 16 will be made with reference to Figs. 1 to 15 together.
First, in the method of detecting the sun position sensor according to the embodiment, the
Next, the
The
1000: sun position sensor 1100: body part
1200: sunlight shielding part 1300: image acquiring part
1400: control unit 1500:
2000: Solar light collecting unit 3000: Drive unit
Claims (26)
An image acquiring unit for acquiring a focus image for sunlight by arranging a sensor surface in a hemispherical inner circumferential surface of the solar-light-shielding unit toward the surface direction of the convex lens;
A driving unit for rotating a direction of the body part; And
Wherein the convex lens is positioned at an approximate position of the sun in accordance with the ecliptic of the sun in a season and a time frame and the convex lens is positioned at an approximate position of the sun, After adjusting the height,
And a control unit for calculating a center point of the focus image and controlling the driving unit so that the center point follows the center point of the image acquired by the image acquisition unit to perform position control with respect to the lens. sensor.
Wherein,
Acquiring an original image in the image acquiring unit, acquiring a binary focus image for a focus image through a Canny edge transformation on the original image,
A center point of the binary focus image is calculated by performing a Hough transform on the binary image,
And performs position control on the lens so that the center point of the binary focus image follows the center point of the original image.
Wherein,
Wherein the height of the convex lens is increased or decreased when the size of the image formed on the image capturing unit by the convex lens corresponds to the temperature reaching the heat resistant temperature of the sensor surface.
Wherein,
Calculating a coordinate of a center point of the focus image and a center point coordinate of the original image; calculating a position of the convex lens on the basis of a position of the center point of the original image, And stops the control of the sun position sensor.
Wherein,
When the size of the focus image is smaller than the reference size,
And performs position control on the lens so that the convex lens is close to the sensor surface.
Wherein the image capturing unit is formed of an illuminance sensor array.
Wherein the image capturing unit is formed of an electronic screen.
And a cross-shaped arm portion is formed at the center of the convex lens.
Wherein the driving unit rotates the body part until the image determined by the controller becomes circular.
A solar light shielding part formed on the body part in a hemispherical shape and having a convex lens on the upper part;
An image acquisition unit located on a lower surface of the solar-light-shielding unit and configured by a convex lens; And
And a control unit for analyzing the image formed on the image acquisition unit and determining the position of the sun.
And a driving unit that rotates the direction of the body according to the position of the sun determined by the control unit.
Wherein the image capturing unit is formed of an illuminance sensor array.
Wherein the image capturing unit is formed of an electronic screen.
And a cross-shaped arm portion is formed at the center of the convex lens.
Wherein the driving unit rotates the body part until the image determined by the controller becomes circular.
A condensing unit for condensing sunlight; And
And a drive unit for controlling the direction of the light collecting unit according to the direction of the sun sensed by the sun position sensor.
The sun position sensor comprises:
A sunlight shielding part formed on the body part in a hemispherical shape and having a convex lens on an upper part thereof, an image acquiring part located on a lower surface of the sunlight shielding part and forming a phase by the convex lens, A control unit for analyzing the image formed on the acquisition unit to determine the position of the sun; and a drive unit for changing the direction of the body according to the position of the sun determined by the control unit.
And the drive unit rotates the condensing unit so as to be parallel to the body portion of the sun position sensor.
Acquiring an image acquired by the image acquiring unit of the photovoltaic sensor through the convex lens;
Analyzing an image of the control unit provided in the photovoltaic sensor through the convex lens;
Rotating the direction of the solar photodetector according to the analysis result of the controller; And
And rotating the solar concentrator so that the direction of the solar photodetector and the direction of the solar concentrator are aligned with each other.
A coordinate system having a center as an origin is set in the image acquisition unit,
Wherein, in the step of analyzing the image passing through the convex lens by the controller provided in the photovoltaic sensor,
Wherein when the image passing through the convex lens is circular and the position of the image is not more than a predetermined distance from the origin, the control unit determines that the sun and the photovoltaic sensor are in a straight line.
A coordinate system having a center as an origin is set in the image acquisition unit,
Wherein, in the step of analyzing the image passing through the convex lens by the controller provided in the photovoltaic sensor,
When the image passing through the convex lens is not circular and the position of the image is not smaller than a predetermined distance from the origin, the control unit judges that the sun and the solar photodetector are not in a straight line and rotates the direction of the solar photodetector So as to control the intensity of the sunlight.
Wherein the control unit analyzes the image passing through the convex lens while the photovoltaic sensor is rotating so that the phase passing through the convex lens becomes circular and the position of the image becomes less than a predetermined distance from the origin, And rotating the direction of the detector.
Wherein the sun position sensor is formed integrally with the sun light condensing device, and the sun position sensor and the solar light condensing device simultaneously rotate according to the analysis result of the control part.
Irradiating sunlight through the convex lens to form an original image and a focus image on a sensor;
Adjusting a height between the convex lens and the sensor so that the size of the focused image is equal to or greater than a preset reference size;
Performing a Canny edge transformation on the focused image to form a binary focused image;
Determining a center point of the binary focus image by applying a Hough transform to the binary focus image; And
And tracking a center point of the binary focus image to a center point of the original image.
Wherein the step of following the center point of the original image comprises:
Calculating a center point coordinate of the binary focus image and a center point coordinate of the original image; And
And determining whether a distance between a center point coordinate of the focus image and a center point coordinate of the original image satisfies a predetermined error range.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20130063068 | 2013-05-31 | ||
| KR1020130063068 | 2013-05-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20140142140A true KR20140142140A (en) | 2014-12-11 |
| KR101562348B1 KR101562348B1 (en) | 2015-10-30 |
Family
ID=52459818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140056238A KR101562348B1 (en) | 2013-05-31 | 2014-05-12 | Sensing device for sensing position of sun, and apparatus and method for collecting sun-light using it |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101562348B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170110955A (en) * | 2016-03-24 | 2017-10-12 | 동원소텍주식회사 | Equipped with a Fresnel lens solar power system |
| US10373321B2 (en) | 2016-05-03 | 2019-08-06 | Research & Business Foundation Sungkyunkwan University | Sun position tracking method based on black sun effect of image sensor, computer program stored in medium, and solar sensor using the same |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100317811B1 (en) * | 1999-07-09 | 2001-12-22 | 김운용 | Method and apparatus for tracking the sun by image recognition |
| JP2004153203A (en) * | 2002-11-01 | 2004-05-27 | Daido Steel Co Ltd | Concentrating photovoltaic power generator |
| JP5098678B2 (en) * | 2008-02-06 | 2012-12-12 | 大同特殊鋼株式会社 | Solar tracking device and tracking method for solar tracking device |
| KR100913074B1 (en) * | 2008-09-10 | 2009-08-21 | (주) 파루 | Solar tracking device and method for high-effective concentration photovoltaic |
| JP3149026U (en) * | 2008-10-07 | 2009-03-12 | 恒夫 長瀬 | Microcomputer-controlled solar tracking device |
| KR101029086B1 (en) * | 2009-08-04 | 2011-04-13 | (주) 파루 | Solar tracking device and its operation method |
| KR100972748B1 (en) * | 2009-12-07 | 2010-07-28 | 에버테크노 주식회사 | Tracker for photovoltaic |
| KR100988264B1 (en) * | 2010-02-23 | 2010-10-18 | 주식회사 오디텍 | Solar tracking senser for solar power generating system |
| KR101313282B1 (en) * | 2012-06-28 | 2013-09-30 | 국민대학교산학협력단 | Hybrid-type solar tracking system and method thereof |
| KR101454217B1 (en) * | 2014-03-14 | 2014-10-24 | 주식회사 산성 | Apparatus and method for controlling orientation of solar cell panel |
-
2014
- 2014-05-12 KR KR1020140056238A patent/KR101562348B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170110955A (en) * | 2016-03-24 | 2017-10-12 | 동원소텍주식회사 | Equipped with a Fresnel lens solar power system |
| US10373321B2 (en) | 2016-05-03 | 2019-08-06 | Research & Business Foundation Sungkyunkwan University | Sun position tracking method based on black sun effect of image sensor, computer program stored in medium, and solar sensor using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101562348B1 (en) | 2015-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100913074B1 (en) | Solar tracking device and method for high-effective concentration photovoltaic | |
| CN101995233B (en) | Angle measuring method for sun precision tracking and digital photoelectric angle sensor | |
| CN102103034B (en) | Optical property measuring system and method | |
| US4211922A (en) | Heliostat guidance | |
| US8290207B2 (en) | Solar power device | |
| CN104391511A (en) | Solar tracking sensor and mounting method thereof | |
| CN102778900A (en) | Counterglow tracking method and tracking system for disc type solar thermal power generation system | |
| CN103019261A (en) | Method for calibrating and detecting azimuth angle of double-shaft tracking heliostat | |
| Fontani et al. | Pointing sensors and sun tracking techniques | |
| KR20120007374A (en) | Apparatus and method for tracking the sun | |
| KR101562348B1 (en) | Sensing device for sensing position of sun, and apparatus and method for collecting sun-light using it | |
| CN201527265U (en) | Measuring device for heliostat sun-tracking error | |
| US9255981B2 (en) | Sunlight collection device and method for tracking sunlight | |
| CN104503475A (en) | Sensor applicable to automatic solar energy tracking device | |
| CN105652336A (en) | Pyramid-type light source tracking detector | |
| KR101751668B1 (en) | Photovoltaics system with sun tracking device | |
| CN102566601A (en) | Sun tracking sensor | |
| CN205193600U (en) | Three -point fix solar energy automatic tracking apparatus and control system thereof | |
| CN102636267B (en) | Sky brightness instrument | |
| CN204788345U (en) | Wireless digital sun is trailed position and is detected head | |
| CN102109413B (en) | Uniformity measuring system and method | |
| KR20130130535A (en) | Device and method for heliostat control using hybrid type solar tracking device | |
| CN108153336A (en) | The device and method for tracking sun altitude | |
| KR101845562B1 (en) | An apparatus for controlling photovoltaic panels | |
| KR20110123954A (en) | Sun detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| LAPS | Lapse due to unpaid annual fee |